I have a higher compression engine 10:1 to 10.5:1 I have an MSD Digital 6 ignition that I have not installed yet. As for my motor...this is what I have: 306, B cam, 1.72 roller rockers, Ported and polished GT40 aluminums with bigger intake and exhaust valves. I'm running 24lb injectors with a 77mm MAF sensor and 65mm throttle body. I have GT40 intake with ported lower. 1 5/8 long tube headers, offroad h-pipe, and 2 chamber Flowmasters out back. I have the fuel pressure set at about 50 lbs which is about where it should be for what I have. Do you think that it is the spark plug gap...my engine builder said it really shouldn't matter from 0.35 to about 0.65...is he full of crap or what?
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BMF 306ci 89 GT
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